/* 字体&大小 */
.type{
    font-family: '宋体';
}
#size{
    font-size: 50px;
}
/* 颜色&粗细 */
.color{
    color: red;
    color: #ff0000;
    color: rgb(255, 0, 0);
}
#thick{
    font-weight: 1000;
}
/* 样式$装饰 */
.style{
    font-style: italic;
}
#decoration #one{
    text-decoration: underline;
}
#decoration #two{
    text-decoration: overline;
}
#decoration #three{
    text-decoration: line-through;
}
a{
    text-decoration: none;
}
/* 对齐&缩进&行高 */
.align h1{
    text-align:center;
}
.align h2{
    text-align: left;
}
.align h3{
    text-align: right;
}
.align p{
    text-indent: 2em;
    line-height: 100px;
}
/* 背景颜色/图片/平铺/位置 */
body{
    background-color: white;
}
#indent{
    background-image: url(../HTML/male.png);
    background-repeat: no-repeat;
    background-position: center;
    background-size: cover;
}
#first{
    width: 500px;
    height: 300px;
    border-width: 2px;
    border-color: green;
    border-style: solid;
    border-radius: 100px;
}
#second{
    width: 400px;
    height: 400px;
    border-width: 2px;
    border-color: green;
    border-style: solid;
    border-radius: 50%;
}
#third{
    width: 500px;
    height: 300px;
    border-width: 2px;
    border-color: green;
    border-style: solid;
    border-radius: 40px 80px 40px 80px;
}
a{
    display: block;
}
#elastic{
    width: 700px;
    height: 700px;
    border-width: 2px;
    border-color: black;
    border-style: solid;
    display: flex;
    justify-content: space-around;
    align-items: center;

}
#elastic span{
    width: 100px;
    height: 100px;
    border-width: 2px;
    border-color: black;
    border-style: solid;
    text-align: center;
}